12-15
12 Communications Performance and Communications Load
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
12-2 Adjusting the Communications Load
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12-2-4 Changing the RPI
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If the usage of capacity cannot be adjusted to the desired level when the setting described
above has been performed, reconsider the network configuration considering the following
points. Refer to 12-2-3 Adjusting Device Bandwidth Usage.
• Reduce the number of nodes and number of connections.
• Split the network.
5
Check the bandwidth usage again.
If you have changed the connection settings, click the Detail Button in the Usage of Device
Bandwidth Area at the bottom of the Network Configuration Window and check bandwidth
usage according to the instructions in 12-2-1 Checking Bandwidth Usage for Tag Data Links. It
is particularly important to check the usage of capacity when an individual connection’s RPI set-
ting was changed without using the Set Packet Interval (RPI) Button.
6
Run user tests to verify that there are no problems with the new settings.
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